A simplified maximum likelihood detection scheme for MIMO systems

A multiple transmit and multiple receive antenna system, referred to as a multiple-input multiple-output (MIMO) system, is known to achieve large channel capacity without bandwidth expansion. We propose a simplified maximum likelihood (ML) detection scheme for a MIMO system which has reduced computational complexity compared to the ML detection scheme. According to simulation results, the bit error rate (BER) performance of the proposed scheme is shown to be similar to that of the ML detection scheme with significant reduction in the computational complexity.